05 _ packaging and compression, 05 _ packaging and Compression
Note:
This blog is mainly about linux's most basic compression, decompression, and packaging operations)1. Common compression commands 1. compress (*. Z)
The old compression software can be replaced by gzip
Co
[Translated from mos] What is the difference between basic table compression and advanced compression in oracle databases?Differences between basic table compression and advanced compression,Extracted from the mos Article Difference Between Basic Table Compression And Advanc
ArticleDirectory
Enable gzip compression (HTTP compression) on IIS)
Enable gzip compression (HTTP compression) on IIS)
[Source ]: Http://www.cnblogs.com/zhangziqiu/archive/2009/05/17/gzip.html
I. Summary
This article summarizes how to enable gzip compression
When we mention the software, we all think of the two old compressed software and the powerful features of WinZip and WinRAR. But are you going to be worried because they spend dozens of minutes compressing or decompressing a hundreds of-megabyte file? If you introduce a compression speed is WinZip and WinRAR 3~5 times of software, smart you will not hesitate to
Compression (zip), compression zip
By default, these compression tools will delete the source files (except zip files) after compression. By default, only files are compressed, but directories are not compressed (LinkPackage).
Gzip
Bzip2
Zip
GNU tar
1. gzip
1.
File compression and decompression, File compression and decompression
File compression and decompression
Common commands and Parameters
1 gzip
-C: output the compressed or decompressed results to the standard output.
-D decompression, equivalent to guzip
-# (1-9) specifies the compression ratio. The default value is 6
Common Linux compression and packaging, linux compression and packaging
1. gzip, zcat
[Root @ linux ~] # Gzip [-cdt #] Alias NameParameters:-C: outputs compressed data to the screen and can be processed through data stream redirection;-D: extract parameters;-T: it can be used to check the consistency of a compressed file ~ Check whether the file has any errors;-#: Compr
Recently need to optimize the project, mainly on the compression of JS and CSS file compression, find relevant information found gulp can achieve the relevant functions, hereby share the use of experience.1. Installing GulpGulp is a front-end build tool based on node. js. So first you need to install Nodejs, install Nodejs.After you complete the NODEJS installation, you need to use NPM to install Gulp.Insta
SQL Server focuses on optimization of Stored Procedure performance, data compression, and page compression to improve IO performance (I ).
Preface
The SQL Server basic series is not over yet, And the last point is not written, and will continue later. Some school friends asked me when I began to write the SQL Server performance series. It may take some time to wait. I have been busy recently, but I will upd
The EXPDP tool of Oracle11g provides ldquo in the true sense, which backs up and compresses rdquo. This technology is very useful when the backup space is insufficient. Oracle is improving and optimizing
Oracle 11g EXPDP provides ldquo in the true sense; backup compression rdquo; this technology is very practical when the backup space is insufficient. Oracle is improving and optimizing
This compression
Texture compression and texture compression formats
As the core processing function of cocos2dx texture, CCImage includes a wide range of underlying API calls and texture format operations, I think it is easier for us to use CCImage as the starting point to expand the cocos2dx engine.
#define CC_GL_ATC_RGB_AMD 0x8C92#define CC_GL_ATC_RGBA_EXPLICIT_ALPHA_AMD
I. SummaryThis article summarizes how to enable gzip compression for Web sites that are hosted by IIS, thereby reducing the network transmission size of your Web page and increasing the speed at which users can display pages.
two. Preface.The knowledge points of this paper are collected from the Internet, mainly from Chinese wiki. Gzip is critical when using YSlow to detect which optimizations are enabled on the Web site. Starting GIP
Copyright NOTICE: Any rights of the algorithm are owned by me, but any developer or organization or group can use this algorithm for development and research, such as the basis of this algorithm to study the new algorithm, but also only need to affirm the source of the basic algorithm, the algorithm commercialization must be done regardless of the use of this algorithm to develop what products, Once the product uses this algorithm, it is necessary to develop the corresponding Chinese version, th
SA 1.0 Alpha release, increased compression efficiency of approximately 10%
Compression algorithm improvements:
The implementation of its own text compression algorithm
* Increased compression ratio and decompression efficiency.
Optimization of syntax compression
* Combi
Before using compression, we can estimate how much the effect of using compression could be.11GR2 can use dbms_comp_advisor before, the specific code is already given in the attachment. You only need to execute two files Dbmscomp.sql and PRVTCOMP.PLB, and then use the Dbms_comp_advisor.getratio stored procedure. No longer described in detail.Sql> set Serveroutput onsql> execdbms_comp_advisor.getratio (' SH
Centos compression and packaging, Centos compression and packaging
This is basic knowledge, but some things are like this. If it is useless for a long time, it will be forgotten. In the past, there was a bad habit of not taking notes, after learning something, you must record it in your blog so that you can check it from time to time.
In the computer world, the expression of data is only 0 or 1, and the
IIS7.5 or IIS7.0 turn on gzip compression method: Open IIS, click on the right side of a Web site, in the features view of the "IIS" area, double-click "Compress”,Tick "Enable dynamic content Compression" and "Enable static content compression" respectively. This is the most common setting for gzip compression to compl
I. SummaryThis article summarizes how to enable Gzip compression for websites hosted by IIS to reduce the network transmission size of webpages and increase the page display speed.
Ii. preface.The knowledge points in this article are collected from the Internet, mainly from the Chinese wiki. gzip is critical when YSlow is used to check which optimizations are enabled on the website. starting Gip compression
Oracle Database Compression
When you hear this word, you must have thought of saving hard disk space. Yes, it is used to do this, but extending it out not only saves hard disk space, it can also save bandwidth and memory usage (cpu consumption is slightly reduced because more computing value operations are required, but in most environments the cpu is idle, so you can ignore it ).
Basiccompression is provided from 9i, and 11gr1 provides the new
Note: 1 inch = 25.4mm
From the information theory perspective, compression removes redundancy in information, that is, retaining uncertain information and removing definite information (which can be inferred ), that is to say, a description closer to the essence of information is used to replace the original redundant description.
CompressionThere are two types: lossless compression (reversible) and lossy
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